Pump.



P. J. BODE PUMP.

APILIOATION FILED K0114, 190a nmmwnn 1m. 13, 1911.

996,697, Patented July 4,1911.

4 SHEETS-SHEET 1. 13

WITNESSES: I INi ENTOR. g/ Q Pafer JBode. figg 8 BY W MW mg ATTORNEY.

COLUMBIA PLANOGRAPH CO., WASHINGTON. n c.

P. J. BODB.

. PUMP. APPLICATION FILED NOV.14, 190a. xnnnwnn 31111.13, 1911. 996,697.

Patented July 4, 1911.

4 SHEETS-SHEET 8.

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INVENTOR. Pam" J. Bode. BY 91% f WITNESSES A TTOR NE Y.

m coLUMnIA ILANOGRAPH co WASHINGTON, D. c.

P. J; BODE.

. PUMP.

APPLICATION FILED NOV.14, 190a. RENEWED JAN. 13, 1911.

Patented July 4, 1911.

4 SHEETS-BHEET 4.

INVENTOR Peter J. Bode.

A TTORNE Y.

COLUMBIA PLANOGRAPH 60.. WASHINGTON, n. C.

UNITED @TATES PATENT UFFTQE,

PETER J. BODE, OF ST. LOUIS, MISSOURI.

PUMP.

Specification of Letters Patent.

Patented July 4, 1911.

Application filed November 14, 1908, Serial No. 462,640. Renewed January13, 1911. Serial No.:-D2,478.

To all whom it may concern:

Be it known that I, PETER J. Bonn, citizen of the United States,residing at St. Louis, State of Missouri, have invented certain new anduseful Improvements in Pumps, of which the following is a full, clear,and exact description, reference being had to the accompanying drawings,forming a part hereof.

My invention has relation to improvements in pumps; and it consists inthe novel construction and arrangement of parts more fully set forth inthe specification and pointed out in the claims.

In the drawing, Figure 1 is a combined side elevation, and section onthe line 11 of Fig. 2 of the invention; Fig. 2 is a combined elevationand section on the line 22 of Fig. 1; Fig. 8 is a top plan of the partswith the upper standards of the pump re moved, and the pump-cylinders incrosssection; I igs. 4 and 5 are diagrammatic illus tratiom showing themanner of operation of the valveactuating shoe or cam and the tappetwhich it directly engages; Figs. 6 and 7 are respectively an end, andcombined side and sectional views of the stufling box for the rock-shaftof the discharge-valve; Fig. 8 is a front elevation of the upper portionof the pump; Fig. 9 is a detached View of one of the oscillatingwalking-beams by which the tappets of the intake and discharge valvesare actuated; Fig. 10 is an end view of Fig. 9; Fig. 11 is an end viewof the rock-shafts carrying the arms by which the tappets are forced outof the path of the tripping shoes of the walking-beam; Fig. 12 is anelevation of the tee constituting the intake for the water or liquid tobe pumped; and F ig. 13 is a section on the line 13-13 of Fig. 12.

The present invention has special application to pumps intended foroperating on sandy and muddy water, although of course it may be used topump any kind of water or liquid.

The objects sought are to produce a pump in which the intake anddischarge valves may be actuated by mechanical connections interposedbetween the valves and pump piston, independently of the pressure of thecurrents controlled by said valves; one in which the valves may be swungto a full open position for a minimum travel of the piston or plunger;one in which the mechanical connectlons between the valves and pistonmay be thrown out of action or disconnected from the valves with aminimum loss of time, and through a comparatively simple manipulation ofthe controlling parts one in which the discharge valve is carried by aremovable chamber permitting ready replacing of the latter for purposesof re pairs; one in which no material resistance is offered to theinflowing current; one in which thedvalve is ready to close at theproper moment so that no time is lost in such closing movement and henceall thumping and pounding is avoided; one in which no leakage ispermitted by the valves; one in which the intake valve closes slowlywhile the water is still entering so that when ready to seat by thereversal of the plunger, it has a minimum distance to travel to reachits seat and hence closes without loss of time at the critical moment;one in which the tendency to clog the joints between the valves andtheir seats by accumulations of sand or dirt is reduced to a minimum,the dirt and sand-laden current always taking a direction to insure themechanical removal of such suspended particles; one in which the liquidtakes the most direct path through the pump on its way to the outlet ordis charge end; and one possessing further and other advantages betterapparent from a detailed description of the invention which is asfollows Referring to the drawings, B, represents the base on which thepump is mounted, the pump in the present instance being double actingand provided with two cylinders, C, C, and pistons P, P. superposedabove the cylinders are standards S, S. Pivoted at one end to a pin 7)on one of the standards S, is an operating lever 1 carrying at anintermediate point thereof a pin 2 from which depend links 3, 3, whoselower ends are in turn pivotally coupled to a pin 4 carried by the heador lug h projecting from the peripheral surface of the tubular castingor bearing 5 secured to the top of the adjacent piston P. The part 5forms a bearing for the front cylindrical cross-bar 6 whose oppositeends terminate in reduced extensions or studs (4, a about which arepivotally swung the front pair of connecting rods 7 7, (omitted fromFig. 2) the lower ends of which are pivotally coupled to the adjacentforked ends of the walking-beams W, W. The walkingbeams WV, 'VV aremounted on a centrally disposed cross-shaft 8 (Fig. 3)

mounted in brackets 9, 9, secured to bracket arms 10, 10 formed on thecylinder walls. Coupled to the opposite or rear ends of thewalking-beams are similar connecting rods 7, 7 whose upper ends arepivotally swung from the terminal studs a, a of the rear cylindricalcross-bar 6 carried in the hearing 5 on top of the rear piston P. Fromthe connections described it is obvious that as the lever 1 isoscillated up and down about its fulcrum 79, the walking-beams W, W willbe oscillated about the axis of the shaft 8, and the pistons P, P, willbe reciprocated alternately in opposite directions.

The opposite ends of one of the walkingbeams, namely, the walking-beamW, are provided on opposite sides with shoes 11, 11, formed respectivelywith faces d, d curved in the arcs of oscillation of the beam, saidfaces terminating in heels 0, a pointing in opposite directions. Fromthe inner edge of each curved face ((Z, (Z) extends a wall to which isdisposed in a plane parallel to the plane of oscillation of the beam,the outer edge of the heel (c, a) being connected to the wall to by thesloping formation or incline 2'. These shoes 11, 11 are made use of fortripping the tappets which control the opening of the intake anddischarge valves as presently to be described. For the present however,I shall describe the valves referred to, and the connections betweenthem and the tappets.

Entering the bottoms of the pump cylinders C, C, through the peripheralwalls thereof, are the transverse branches or legs of an intake memberor tee 12 to the flange 13 of whose outer leg may be coupled any supplypipe (not shown) leading to the source of water or-liquid to be pumped.The free ends of the transverse branches are formed so as to inclineinwardly and downwardly (Fig.1) said ends being controlled by the intakevalves V, V. At the unction of the transverse legs of the tee is a handhole closed by a plug 14 whose inner face is beveled and curved so as toconform to the curvature of the inner walls of the legs, thus making asmooth surface along which dirt and sand can not lodge. The plug is heldin place by a clamp 15 and screw 16, as well understood in the art(Figs. 12, 13). The valve V is provided with two ears (Fig. 2) throughwhich passes the wrist-pin 17 and sections of the shaft 18 respectively,where by the pin 17 is off-set a suitable distance from the axis ofoscillation of the rock-shaft 18. In this way the valve will oscillatenot about the axis of the wrist-pin, but about the axis of the shaft 18,and accordingly will sweep through a considerable arc for a slightrotation of the rock-shaft 18. This, coupled with the inclined mouth ofthe leg of the intake member 12 which said valve controls, permits thefull opening of such mouth to be uncovered for a slight rotation of theshaft 18, which slight rotation imparts a considerable arc ofoscillation to the valve. This is clearly obvious from an inspection ofFig. 1, where a slight oscillation or rocking of the shaft 18 will swingthe valve V to full open position. The radius describing the are whichthe free edge of the valve traverses corresponds to the hypotenuse of atriangle of which the valve may be considered the base, theperpendicular being represented by the offset between the shaft and thewrist pin 17. One end of the shaft 18 passes through a stufling-box 19,the projecting portion of such shaft-end being provided with a crank-arm20 whose outer endis pivotally coupled to the terminal head of a link 21at the lower end of the spring 22, the upper end of the springterminating in a link 23 whose terminal head is pivotally connected tothe adjacent arm of a tappetlever 24. The lever 24 is carried at theinner end of a rock-stem 25 mounted in a bracket or member 26 bolted tothe frame 27 projecting from the pump cylinders (Fig. 3), the stemhaving coiled thereon an expanding spring 28 which is interposed betweenthe bracket and a collar 29 fixed on the stem. In this way the springtends to. draw the tappet-lever 24 toward the walking-beam W. The lever24 is limited in its oscillation under the draft of the spring 22 (whichis a contracting spring) by a lug or stop 30 by which the adjacent armof the lever is arrested. The free'end of the opposite arm of the lever24 carries a finger or tappet 31 which for an upward oscillation of anarm of the walking-beam W is impinged by the wall -6 of the shoe 11 bywhich impact the lever 24 is oscillated in a direction to pull on thelink composed of the parts 21, 22, 23, whereby an upward oscillation isimparted to the crank-arm 20 and the valve V swung to open position.spring 22 is interposed between the parts 21 and 23 to take up anysudden ar and prevent breaking of the parts in the event of a suddenimpact against the tappet 31.

With the impact of the face 6 of the shoe 11 against the tappet 31', ofcourse a raising of the arm of the lever 24 to which said tappet issecured, results, and in this raising of such lever arm an opening ofthe valve V follows; but it may be well at this time to follow up thefull sweep of the ascending arm of the walking-beam and see what follows:This will be best understood by a reference to the diagrammatic viewsin Figs. 4 and 5. As the wall 6 of the shoe 11 strikes the pin or tappet31 it drives the tappet before it, oscillating the lever 24 about theaxis of the stem 25, said pin describing a path defined by the circularline 00 (Fig. 4). As the shoe continues its oscillation the pin 31 slips01% the wall e The V settling in the outer surface of the wall d of theshoe (the valve V all this time remaining open, it having beenoscillated to said open position by the tripping of the lever 24 towhich the valve is connected through the parts 20, 21, 22, 23, androckshaft 18) over which it rides until forced to slip off by adisengagement of the wall (Z therefrom. As soon as the tappet pin hasslipped off said wjall d, the weight of the valve V supplemented by thepressure of the now descending piston P coupled to the walking-beamcause the valve to close and draw the lever 24; to its originalposition; but in such return, the pin 31 is now brought back intoposition to engage the opposite face of the wall (Z along which it ridesin the descending movement of the shoe (or downward oscillation of thearm of the walking-beam W), until it encounters the incline 2', whichincline forces the pin, and consequently the stem 25 inwardly againstthe action of the. expanding spring 28-, until the pin has slipped offthe incline, whereupon the expanding action of the spring draws the stemback to its original position (left hand side Fig 3) so as to againbring the pin 31 directly over the terminal wall a of the shoe, to beagain engaged and tripped by the latter with the next ascending movementor upward oscillation thereof. It thus follows that with every upwardoscillation of the walking-beam (the operation described applying toeither end of the beam) the shoe 11 thereof strikes the tappet 31,rocking the stem 25 about its axis, the consequent oscillation impartedto the tappet lever 21 drawing on the connecting rod composed of thesections 21, 22, 23, which in turn oscillate the crank-arm 20 whichrocks the shaft 18 in proper direction to open the valve V. The pumpbeing double acting, first one valve V is opened and then the other. Thevalve remains open until the pin 31 has slipped off the face (Z by whichtime the walking-beam is ready to make its return stroke or oscillation,whereupon the pin 31 slips off the face d allowing the valve to close bygravity. It is for the closed posi tion of the valve that the tappet pin31 engages the inner face of the wall (Z, and incline 2' by which thepin is forced to the edge of the wall 6 and allowed to automaticallyslip back over the wall a for engagement therewith in the next stroke ofthe walking-beam.

With the downward oscillations of the walking-beam the discharge valvesV are opened, the action of the shoes 11 upon the tappet-pins 31 oftheir corresponding tappet-levers 24: and rock-stems 25 being exactlythe same as that described in connection with the intake valves V, theonly difference being that the wall (Z of the shoe 11 actuating thedischarge valve forms the inner boundary of the shoe instead of theouter boundary (Fig. 9) this being necessary since the rock-stems 25 arelocated to one side of, and interior to the position occupied by thestems 25. The shoe 11 is provided with a terminal wall 6, an inclineformation 2', all precisely the same as the shoe 11 which actuates theintake valve V. Thetappet-levers are arrested in their oscillation bybracket arms or stops 30, and the connecting rod between the rock-shaft18 of said valve is composed of sections 21, 22, 23, identical with thecorresponding sections 21, 22, 23 of the intake valve V. Of course inthe actual operation of the machine, the intake valve identified withone cylinder opens while the discharge valve identified with theopposite cylinder opens, the other intake and discharge valve closing.This is due to the fact that the ascending shoe at the end of one arm ofthe walking-beam is actuating the intake valve, while the descendingshoe at the opposite end is actuating the discharge valve. The shortends of the rock-shafts 18, 18 are mounted in plates m, m locatedopposite suitable hand holes through which access may be had into thecylinders C, C, and discharge chamber 32. The chamber 32 is conical,having secured to the bottom thereof an elbow 33 provided with a flange34 to which any conducting pipe (not shown) may be secured. Thedischarge valves V are mounted similarly to the valves V as obvious fromthe drawings, except that the discharge ends of the basal angularextensions 35 leading from the cylinders G, C, incline downwardly andoutwardly instead of downwardly and in wardly as is the case with theintake ends of the legs of the tee 12. This however, is due to the factthat the discharge legs of the extensions 35 converge toward the cen terof the chamber 32 instead of diverging as do the legs of the tee 12; sothat the results insofar as securing a full opening of the valves V witha slight rotation of the rock-shafts 18 are the same. As shown (Fig. 1)the discharge legs of the extensions 35 are directed toward the outlet 0of the chamber 32 so that a ready discharge of the water and sand cantake place, the flow being directed toward such outlet by the convergingwalls of the discharge chamber.

In the case of the rock-stems 25 identified with the discharge valves V,the tappet pins 31 carried by the tappet-levers 2 1 of such stems, areforced inwardly into the paths of oscillation of the shoes 11 by springarms 28 (instead of coiled springs such as 28) said spring 28 beingsecured to the bracket of which the lugs 30 form a part (Fig. 3), thefree ends of the spring arms bearing against the levers 2 1 at pointsdirectly above the stems 25. Thus the springs 28, 28 serve to force thestems 25, 25' in proper direction to bring their tappet-pins 31, 31 inproper position to be struck by the shoes 11, 11 in the oscillations ofthe walking-beam WV, and thereby open the respective valves V, V for thepurposes indicated. The opening of the valves through the mechanicalconnections as described is desirable or necessary however only in caseswhere the water is so charged with dirt and sand as to make its flow sosluggish and impotent as to be ineffective for opening the valves by thenatural current or flow induced under the reciprocating actions of thepistons. Where however, the water is practically free of dirt and sandso that the force of its flow is not impeded in responding to themovements of the pistons, the mechanical opening of the valves need notbe resorted to, and the valves are left to open under the pressure ofthe fluid current alone. It becomes necessary therefore under thosecircumstances to force the tappet pins 31, 31 out of the range ofoscillation of the shoes 11, 11, and for this purpose the followingmechanism is availed of :Mounted in the frame members 26, in aplane-slightly above the axes of oscillation of the stems 25, 25 are apair of rock-shafts 36, 36, one end of which is provided withhand-levers 37 37. Pivotally secured at one end to one of said levers isa gravity pawl 38 having teeth disposed along its bottom edge, the bodyof the pawl passing freely through an opening in the opposite lever 37(Figs. 2, 11). Disposed in proper positions along the shafts 36, aredepending arms or grippers 39, the positions of these arms being such asto come directly in front of the stems 25, 25, so that when the levers37, 37 are seized by the operator and swung to.- ward each other, thepairs of arms or grippers 39, 39 will oscillate toward each other, thoseon one shaft forcing the stems 25 inwardly, and those on the other shaftdriving the stems 25 outwardly against the resiliency of the respectivesprings 28, 28, thus forcing the stems referred to far enough from theirnormal position as to push the tappet pins 31, 31 out of the paths ofoscillation of the shoes 11, 11 of the walking-beam. Of course, when thelevers 37 37 are thus drawn or squeezed together the teeth of thegravitating pawl 38 will engage the outer edge of the opening in thelever through which the pawl is free to pass, and thus automaticallylock the levers at the particular tooth which happens to have passedthrough the opening, (see dotted position Fig. 11). With the tappet-pins31, 31 thus temporarily held out of the path of oscillation of thewalking-beam, the valves V, V are left to open under the pressure of thecurrent induced as a result of the reciprocations of the pistons drivenby the operating lever 1. Of course when the pawl not referred to, arewell known and form no part of the present invention.

The operation of the pump has been sufficiently detailed withoutreviewing the same at this point. Suffice it to say however, that thepins 31, 31 slip off their riding faces (Z,

'(Z of their respective tripping shoes 11,11,

so as to be released'somewhat before the end of the piston stroke. Thispermits the valve to be released somewhat before the end of the stroke,and may be returned to a position close to its seat as it is now onlyheld open by the flow of the water past it. So that when the pistonactually begins its return stroke the valve may be instantly forcedagainst its seat thus reducing the valve leakage to a minimum. Again, bythe downward dip assumed by the valves, any dirt which may tend to lodgebetween the valve and its seat is automatically washed and drained, sothat no foreign matter may effectively lodge on the valve seat, and hereagain the leakage is reduced to a minimum.

Having described my invention, what I claim is 1. In a pump, thecombination with a cylinder, a piston therefor, an intake-valve,connections independent of the pressure of the fluid pumped foroperating said valve, and means for disengaging said connections wherebysaid valve may be actuated by the pressure of the fluid alone.-

2. In a pump, the combination with a cylinder, a piston therefor, anintake-valve, connections independent of the pressure of the fluidpumped interposed between the valve and piston for operating said valve,and means for disengaging said connections whereby said valve may beactuated by the pressure of the fluid alone.

3. In a pump, the combination with a cylinder, a piston therefor, adischarge-valve, connections independent of the pressure of the fluidpumped for operating said valve, and means for disengaging saidconnections whereby said valve may be actuated by the pressure of thefluid alone.

1. In a pump, the combination with a cyle inder, a piston therefor, anintake-valve, a member coupled to the piston, and detachable connectionsmounted in movable relation to said member and cooperating therewith forone position to actuate the valve independently of the pressure of thefluid pumped.

5. In a pump, the combination with a cylinder, a piston therefor, anintake-valve, a member coupled to the piston, connections mounted inmovable relation to said memher and cooperating therewith for oneposition to actuate the valve independently of the pressure of the fluidpumped, and means for shifting said connections out of cooperatingposition with said member whereby the valve may be actuated by thepressure of the fluid alone.

6. In a pump, the combination with a cylinder, a piston. therefor, avalve for controlling the fluid to be pumped, a member coupled to thepiston, and detachable connections mounted in movable relation to saidmember and cooperating therewith for one position to actuate the valveindependently of the pressure of the fluid pumped.

7 In a pump, the combination with a cylinder, a piston therefor, a valvefor controlling the fluid to be pumped, a member coupled to the piston,and connections mounted in movable relation to said member andcooperating therewith for one position to actuate the valveindependently of the pres sure of the fluid pumped, and allowing thepressure of the fluid alone to actuate the valve for another position ofsaid connections.

8. In a pump, the "combination with a cylinder, a piston therefor, awalking-beam coupled to the piston, a valve for controlling the fluid tobe pumped, and connections mounted inmovable relation to the walkingbeamand cooperating therewith for one position to actuate the valveindependently of the pressure of the fluid pumped, and means forshifting the connections aforesaid out of cooperation with thewalking-beam whereby the valve is free to be controlled by the pressureof the fluid alone.

9. In a pump, the combination with a cylinder, a piston therefor, awalkingbeam coupled to the piston, a valve for controlling the fluid tobe pumped, a tappet mounted in movable relation to the path ofoscillation of the walking-beam and cooperating therewith for oneposition, intermediate connections between the tappet and valve wherebythe latter may be actuated by the walking-beam independently of thepressure of the fluid pumped, and means for shifting the tappet out ofthe path of movement of the walkingbeam, whereby the valve is left underthe control of the fluid pressure alone.

10. In apump, the combination with a cylinder, a piston therefor, awalking-beam coupled to the piston, an oscillating valve for controllingthe fluid to be pumped, a rocking tappet-lever, a connecting rodinterposed between the tappet-lever and valve, a tappet-pin on thetappet-lever, a longitudinally movable rock-stem secured to thetappet-lever and adapted for one position to maintain the tappet-pin inthe path of oscillation of the walking-beam whereby a movement of thebeam in one direction effects control of the valve independently of thepressure of the fluid pumped, and means for shifting the rock-stem andtappet-pin to a position to bring the pin out of the path of movement ofthe walking-beam.

11. In a pump, the combination with a cylinder, a piston therefor, awalking-beam coupled to the piston, a valve for controlling the fluid tobe pumped, a spring-controlled rocking-stem capable of longitudinalmovement, a tappet-lever on the stem, a tappet pin on the lever,intermediate connections between the lever and valve, a shoe on thewalking-beam adapted to impinge against the pin for an oscillation inone direction and oscillate the tappet-lever and thereby actuate thevalve, then releasing the pin so impinged, and suitable formations onthe shoe for preventing impact against the pin with the return stroke ofthe walking-beam, but engaging the pin to shift the longitudinallymovable stem the required degree to restore the pin to its properposition to be impinged by the shoe on the next stroke of thewalking-beam, whereby with each stroke of the walking-beam in a givendirection, the valve is actuated independently of the pressure of thefluid to be pumped.

12. In a pump, the combination with a cylinder, a piston therefor, avalve for con trolling the fluid to be pumped, a walkingbeam oscillatingin conjunction with the reciprocations of the piston, alongitudinallyyielding springcontrolled rocking-stem, a tappet-lever onsaid stem, a tappet-pin on the lever, intermediate connections betweenthe lever and valve, a shoe on the walkingbeam having a terminal facefor impinging against the tappet-pin with an oscillation of the beam inone direction, and having a curved wall for the travel of the pin alongone face thereof during such oscillation, the pin traveling freely alongthe opposite face of said curved wall with the oscillation of the beamin the opposite direction, said shoe having an incline formation on theside of such opposite face leading to the edge of the terminal impingingwall, whereby the pin riding along said incline is forced to the edge ofthe impinging wall, the spring controlling the longitudinally movablerockstem, drawing the stem in proper direction upon the release of thepin from said incline formation to bring the tappet-pin to its originalposition to be again impinged by the shoe with the next stroke of thewalking-beam, whereby with every stroke of the piston in a givendirection, the valve is actuated without regard to the fluid pressure.

13. In a pump, a walking-beam terminating in a shoe having a wall curvedin the arc of oscillation of the beam, a terminal wall for one end ofthe curved wall, and an incline or wedge formation connecting the end ofthe terminal wall with the adjacent face of the curved wall, as setforth.

14. In a pump, the combination with a pair of springcontrolledlongitudinallymovable rock -stems, tappet levers carried thereby,tappet-pins on said levers, a pump cylinder, a piston therefor, intakeand discharge valves connected to the respective tappet levers, anoscillating walking -beam for engaging the tappet-pins, a pair of rockshafts mounted in proximity to the rock-' stems, gripping arms on therock-shafts for engaging the stems, and pawl-controlled levers on therock-shafts for rotating the latter in a direction to force the grippingarms against the rock-stems and force the pins out of the path of impactWith the walkingbeam. 1

15. In a pump, a pair of cylinders terminating in discharge-chambersconverging toward a common outlet, an intake member terminating in eachcylinder in a downwardly inclined discharge mouth, and a valvecontrolling said mouth, and oscillating about an axis located outside ofsaid member and off-set a suitable distance from the body of the valve,whereby the full opening of the mouth is uncovered with a minimum degreeof oscillation of the shaft about which the valve oscillates.

16. In a pump, a pair of cylinders terminating in a discharge-chamberhaving downwardly converging walls, an intake tee having branchesterminating in downwardly and inwardly inclined valve-seats, thecylinders having extensions terminating within the discharge-chamber indownwardly and outwardly inclined valve-seats, for the purpose setforth.

In testimony whereof I afliX my signature, 1n presence of two witnesses.

PETER J. BODE.

Witnesses:

EMIL STAREK, T. EVANS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0-.

